/Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponentsEditorOnly/Public/EditorModelingObjectsCreationAPI.h
Create a new material object based on the data in CreateMaterialParams
a results data structure, containing a result code and information about any new objects created
virtual [FCreateMaterialObjectResult](API\Plugins\ModelingComponents\FCreateMaterialObjectResult) CreateMaterialObject ( const [FCreateMaterialObjectParams](API\Plugins\ModelingComponents\FCreateMaterialObjectParams) & CreateMaterialParams )